Textbook-Integrated Guide to Educational Resources

TIGER

Yet Another Variation on the Electrolysis of Water at Iron NailsMark T. Stauffer and Justin P. FoxDescribes a variation on the electrolysis of water with iron nails in which a sharp contrast in the colors produced effectively demonstrates electrolysis and the diffusion of oxidized and reduced species from the electrodes.Stauffer, Mark T.; Fox, Justin P. J. Chem. Educ.2008, 85, 523.

A Small-Scale and Low-Cost Apparatus for the Electrolysis of WaterPer-Odd Eggen and Lise KvittingenThis article describes how to construct two simple, inexpensive, and illustrative apparatuses using disposable polyethene pipets and floral wire for electrolysis of water. These apparatuses suit various grades and curricula. Eggen, Per-Odd; Kvittingen, Lise. J. Chem. Educ.2004, 81, 1337.

Laboratory Equipment / Apparatus |

Oxidation / Reduction |

Electrochemistry

Isolation of Copper from a 5–Cent Coin. An Example of ElectrorefiningSteven G. SogoThe United States 5cent coin, commonly known as a "nickel", is made of an alloy containing 75% copper and 25% nickel. The experiment is a visually appealing illustration of the process of electrorefining using selective reduction.Sogo, Steven G. J. Chem. Educ.2004, 81, 530.

Is Every Transparent Liquid Water?Muhamad Hugerat and Sobhi BasheerComparisons of the properties (polarity, electric conductivity, color change due to the presence of an acid-base indicator, and electrolysis) of three transparent and colorless liquids: water, glycerol, hexane, and ethanol.Hugerat, Muhamad; Basheer, Sobhi. J. Chem. Educ.2001, 78, 1041.

Experimental work with tin(II) chloride in a high school Sanchez, Manuela MartinThe author describes a final-project performed by students that integrates concepts of hydrolysis, Le Chatelier's principle, and electrolysis. Students seek answers to questions such as: "What reactions were involved; why is an aqueous solution of SnCl2 acidic; how can elemental tin be recovered from the system?" Sanchez, Manuela Martin J. Chem. Educ.1988, 65, 898.